KGO-TV(BERKELEY, Calif.) -- As supporters of President Trump gathered at "March 4 Trump" rallies across the country on Saturday, one event in Berkeley, California, turned violent, leading to arrests.

The marchers at Martin Luther King Jr. Civic Center Park were met by critics of the president's policies, who had planned a counter-demonstration. ABC affiliate KGO-TV reports shouting matches began to erupt and video on social media showed some of the demonstrators getting physical.

Protesters threw smoke bombs into the crowd, according to KGO-TV, and some pro-Trump marchers said they were pepper-sprayed. One anti-Trump activist said she was pushed to the ground and hit on the head with a flag.

Berkeley police officers eventually stepped in and at least 10 people were arrested; five for battery, four for assault with a deadly weapon, and one for resisting arrest.

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